StoneFollowJun 18, 2018·1 min read…that the brow ridge’s decline allowed some of the more subtle communications that we rely on today. Perhaps our eyebrows painted an entire new dimension of communication onto what O’Higgins calls our vertical canvas — our foreheads.Humans May Have a Surprising Evolutionary Advantage: Expressive Eyebrows5826Popular ScienceLoved the phrase, “vertical canvas.” Thank you.